wp_set_featured_image tool reference for StifLi Flex MCP
Writeassigns or removes the featured image of a post. If `attachment_id` is `0`, it removes the image.
Description
assigns or removes the featured image of a post. If `attachment_id` is `0`, it removes the image.
What it is for
- Automating featured images after uploading or generating media.
- Fixing posts that are missing thumbnails.
Example use case
attaching a generated hero image.
Sample prompt
Set attachment ID 981 as the featured image for post ID 245.
Sample response
{
"tool": "wp_set_featured_image",
"status": "ok",
"updated": true
}
What does wp_set_featured_image do?
assigns or removes the featured image of a post. If `attachment_id` is `0`, it removes the image.
Does wp_set_featured_image modify site data?
Yes. It is a write operation and can create, update, or delete data depending on arguments.
Which capability is commonly required?
It usually runs under controls compatible with edit_posts and the active MCP profile.
How should wp_set_featured_image be used safely?
Enable write confirmations, test in staging first, and keep changelog/rollback enabled.